...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Integrated design of laminated composite structures with piezocomposite actuators for active shape control
【24h】

Integrated design of laminated composite structures with piezocomposite actuators for active shape control

机译：带有压电复合驱动器的层状复合结构的集成设计，用于主动形状控制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An integrated design approach of laminated composite structures actuated by piezocomposite materials is presented for active shape control. The primary purpose is to maximize static shape control authority of a piezo-actuated laminated plate by simultaneously optimizing the substrate laminates and the actuators. The design variables include thickness, ply angles of the substrate plate and locations, PZT fiber orientations of the actuators. Frequency constraints are implemented to obtain acceptable solutions. General genetic algorithm (GA) and NSGA-II are used to obtain the optimal designs. The results indicate that enhanced control authority must be achieved by simultaneously optimizing the substrate laminates and actuators. The bending-twisting coupling effect of the composites and anisotropic actuation effect of the piezocomposite actuators are conducive to produce improved static control performance. More shape control authority is available due to the presence of more actuators. Larger deformation can be produced with a low mass of the host composites without constraints but the structure would be too flexible. A series of Prato-optimal results can be obtained by considering trade-off between shape control authority and mass of the whole structure while considering constraints. Reasonable, practical designs can be obtained by imposing frequency constraints in the integrated design.
机译：提出了一种由压电复合材料驱动的层状复合结构的集成设计方法，用于主动形状控制。主要目的是通过同时优化基板层压板和驱动器来最大化压电驱动层压板的静态形状控制权限。设计变量包括厚度，基板的铺层角度和位置，执行器的PZT纤维方向。实施频率限制以获得可接受的解决方案。通用遗传算法（GA）和NSGA-II用于获得最佳设计。结果表明，必须通过同时优化基板层压板和致动器来实现增强的控制权限。复合材料的弯曲扭转耦合效应和压电复合致动器的各向异性致动效应有利于产生改善的静态控制性能。由于存在更多的执行器，因此可以获得更多的形状控制权限。可以在没有限制的情况下以低质量的主体复合材料产生较大的变形，但结构将过于灵活。通过在考虑约束的同时考虑形状控制权限和整个结构的质量之间的权衡，可以获得一系列的普拉托最优结果。通过在集成设计中施加频率限制，可以获得合理，实用的设计。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号